<template>
  <div>
    <!--面包屑导航-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--用户列表卡片区域-->
    <el-card class="box-card">
      <!--搜素与添加区域-->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input v-model="queryInfo.query" clearable placeholder="请输入内容">
            <el-button slot="append" @click="getUserList()" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--用户列表-->
      <el-table
        :data="userList"
        border
        stripe
      >
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <div slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStartChange(scope.row)"></el-switch>
          </div>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <div slot-scope="scope">
          <!--修改-->
          <el-button
            type="primary"
            size="mini"
            icon="el-icon-edit"
            @click="showEditDialog(scope.row.id)"></el-button>
          <!--删除-->
          <el-button type="danger" @click="removeUserById(scope.row.id)" size="mini" icon="el-icon-delete"></el-button>
          <!--分配角色-->
          <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button type="warning" @click="setRole(scope.row)" size="mini" icon="el-icon-setting"></el-button>
          </el-tooltip>
          </div>
        </el-table-column>
      </el-table>
      <!--分页-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!--添加用户模态框-->
    <el-dialog
      title="添加用户"
      :visible.sync="dialogVisible"
      width="50%"
      @click="addDialogClosed"
    >
      <el-form
      :model="addForm"
      :rules="addRules"
      ref="addForm"
      label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--修改用户模态框-->
    <el-dialog
    title="修改用户"
    :visible.sync="editDialogVisible"
    width="50%"
    @close="editDialogClosed"
  >
    <el-form
      :model="editForm"
      :rules="editFormRules"
      ref="editFormRef"
      label-width="70px"
    >
      <el-form-item label="用户名">
        <el-input disabled v-model="editForm.username"></el-input>
      </el-form-item>
      <el-form-item label="邮箱" prop="email">
        <el-input v-model="editForm.email"></el-input>
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input v-model="editForm.mobile"></el-input>
      </el-form-item>
    </el-form>
    <span slot="footer" class="dialog-footer">
      <el-button @click="editDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
  </el-dialog>
    <!--分配角色模态框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
    >
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
      <el-button @click="setRoleDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'User',
  data () {
    // 验证邮箱规则
    const checkEmail = (rule, value, cb) => {
      // 验证邮箱正则表达式
      const regEmail = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return cb()
      }
      cb(new Error('请输入合法邮箱'))
    }
    // 验证手机号规则
    const checkMobile = (rule, value, cb) => {
      const regMobile = /^1[3456789]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入正确手机号'))
    }
    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      // 添加用户的参数
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      userList: [],
      total: 0,
      // 添加用户列表对话框的显示隐藏
      dialogVisible: false,
      // 修改用户列表对话框的显示隐藏
      editDialogVisible: false,
      // 修改用户列表参数
      editForm: {},
      // 修改表单验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色对话框的显示隐藏
      setRoleDialogVisible: false,
      // 需要分配权限用户数据
      userInfo: {},
      // 角色列表
      rolesList: [],
      // 已选中的角色Id值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取管理员列表失败')
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听页数
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页面值改动
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听用户权限改变
    async userStartChange (userInfo) {
      // console.log(userInfo.mg_state)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功')
    },
    // 重置表单
    addDialogClosed () {
      this.$refs.addForm.resetFields()
    },
    // 添加用户
    addUser () {
      this.$refs.addForm.validate(async valid => {
        if (!valid) { return }
        const { data: res } = await this.$http.post('users', this.addForm)
        // console.log(res)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.dialogVisible = false
        this.getUserList()
      })
    },
    // 修改角色信息
    async showEditDialog (id) {
      // console.log(id)
      const { data: res } = await this.$http.get(`users/${id}`)
      // console.log(res)
      if (res.meta.status !== 200) { return this.$message.error('查询用户信息失败') }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) { return }
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }
        this.$message.success('更新用户信息成功')
        this.editDialogVisible = false
        this.getUserList()
        // if (!valid) { return this.$message.error('修改用户信息失败') }
      })
    },
    // 根据id删除角色信息
    async removeUserById (id) {
      // 弹框询问
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确认删除，则返回字符串confirm
      // 如果用户取消删除，则返回字符串cancel
      console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete(`users/${id}`)
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除成功！')
      this.getUserList()
    },
    // 分配角色对话框
    async setRole (userInfo) {
      this.userInfo = userInfo
      // 展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮 上传分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择你要分配的角色！')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色信息失败！')
      }
      this.$message.success('更新角色信息成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>

<style scoped>

</style>
